QACAT MCP Server

by dimawin22 Your server? Claim it

answering

QACAT is answering right now. Last checked moments ago.

Translation QA: automated checks, AI evaluation, linguistic review, and visual in-context testing.

The linked repository no longer exists on GitHub — it was deleted or made private.

Uptime history 91 days of history · worst day 92%

91 days agonow

100.0%

Uptime 24h

92 of 92 checks

—

Tools

hidden behind auth

175 ms

Response time

average over 24h

API key

Access

streamable-http

This one has been quiet for a while

Quiet is not dead — but it is worth knowing when it wakes up, or when someone else takes it over. We watch the repository and tell you either way.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 0 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add qacat --transport http https://qacat-mcp.qacat.workers.dev/mcp

Settings → Connectors → Add custom connector, then paste this address

https://qacat-mcp.qacat.workers.dev/mcp

~/.codex/config.toml

[mcp_servers.qacat]
url = "https://qacat-mcp.qacat.workers.dev/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "qacat": {
      "url": "https://qacat-mcp.qacat.workers.dev/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "qacat": {
      "type": "http",
      "url": "https://qacat-mcp.qacat.workers.dev/mcp"
    }
  }
}

This endpoint answered with an authorization challenge. The server is running, but you need an API key from its owner to call it.

Endpoints

URL	Transport	State	Latency	Checked
https://qacat-mcp.qacat.workers.dev/mcp	streamable-http	needs key	113 ms	0 min ago

Alternatives to QACAT

same job, measured the same way

ViewportWitness by Apex Labs

by baffles78

Agent website testing: browser QA, visual regression, Markdown extraction, and security checks.

6 tools answering

CARBON

by jarbon

AI testing harness with Jay: risk-based checks, bug investigation, and local evidence reports.

113 installs/wk local only

Dungbeetle

by dungbeetle

Visual regression & snapshot testing for AI agents — list runs, read semantic diffs, review.

43 installs/wk local only

Browserbase

by mcparmory

Create and control browser sessions for web automation, testing, and AI agent tasks

213 installs/wk local only

Human For AI

by humanforai

Hire a real human for real-world verification, product testing, AI output review, and errands.

51 installs/wk 6 tools answering

Gridzen Verification

by gridzen

Country verification research, integration planning and synthetic tests. No live identity checks.

5 tools answering

Feason Context

by feason-com

Christian source evidence for AI agents, with provenance, tradition coverage, and citation checks.

answering

Pact Tooling

by pact-community-organization

Pact 5 tooling: REPL test runs, trap scanning, gas estimation, interface diff, format checks.

41 installs/wk local only

QACAT — questions

Answers built from our own checks of this server.

Why is there no tool list for QACAT?

The server answered our handshake with an authorization challenge, so it is running — but it will not describe its tools to an anonymous client. To see them you need to connect with your own credentials. We record it as alive, not as broken: 100.0% of checks in the last 24 hours got a reply.

Is QACAT working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 175 ms. The bar chart above shows every period we have measured.

Is QACAT still maintained?

The linked repository no longer exists on GitHub — it was deleted or made private. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.

How do I connect QACAT?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address. You will need your own key: it refuses anonymous clients.

Does QACAT need an API key?

Yes. Every time we knock, QACAT answers with an authorization challenge instead of its tool list — that is how we know it is running and gated rather than broken. Bring your own credentials and it will talk.

How fast is QACAT?

It answers our handshake in 175 ms on average, which is faster than 77% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.